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Data Conversion
Date GO
        ex) yyyy mm dd
 
GPS Week + Day Of Week :
Year + Day of Year :
Year, Month, Day :


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GNSS Data
- Daily GNSS Data at a 30-second sampling rate
- Hourly GNSS Data at a 30-second sampling rate
- High rate GNSS Data at a 1-second sampling rate
- Broadcast ephemeris, meteorological, and other auxiliary files
All data should be available in RINEX format, both Hatanaka and Z compressed.


Directories and file names
Daily data: gps (glonass)/data/daily/YYYY/DDD/YYt/mmmmDDD#.YYt.Z
Code Meaning
mmmm 4-character site monument name
YYYY 4-digit year
YY 2-digit year
DDD 3-digit day of year
# sequence number (0, 1, ...) indicating multiple files within a day; typically 0
t type of data:

d = Hatanaka-compressed observation data (doi:10.5067/GNSS/gnss_daily_d_001)
g = GLONASS broadcast ephemeris data (doi:10.5067/GNSS/gnss_daily_g_001)
m = meteorological data (doi:10.5067/GNSS/gnss_daily_m_001)
n = GPS broadcast ephemeris data (doi:10.5067/GNSS/gnss_daily_n_001)
o = observation data (doi:10.5067/GNSS/gnss_daily_o_001)
s = observation summary files (output of TEQC) (doi:10.5067/GNSS/gnss_daily_s_001)
.Z UNIX compressed file
Hourly data: gps (glonass)/data/hourly/YYYY/DDD/HH/mmmmDDDH.YYt.Z
Code Meaning
YYYY 4-digit year
DDD 3-digit day of year
HH 2-digit hour of day (00, 01, ..., 23)
mmmm 4-character site monument name
YY 2-digit year
t type of data:

d = Hatanaka-compressed observation data (doi:10.5067/GNSS/gnss_hourly_d_001)
g = GLONASS broadcast ephemeris data (doi:10.5067/GNSS/gnss_hourly_g_001)
m = meteorological data (doi:10.5067/GNSS/gnss_hourly_m_001)
n = GPS broadcast ephemeris data (doi:10.5067/GNSS/gnss_hourly_n_001)
.Z UNIX compressed file
High rate data: gps (glonass)/data/highrate/YYYY/DDD/YYt/HH/mmmmDDDHMM.YYt.Z
Code Meaning
YYYY 4-digit year
DDD 3-digit day of year
YY 2-digit year
t type of data:

d = Hatanaka-compressed observation data (doi:10.5067/GNSS/gnss_highrate_d_001)
g = GLONASS broadcast ephemeris data (doi:10.5067/GNSS/gnss_highrate_g_001)
m = meteorological data (doi:10.5067/GNSS/gnss_highrate_m_001)
n = GPS broadcast ephemeris data (doi:10.5067/GNSS/gnss_highrate_n_001)
HH 2-digit hour of day (00, 01, ..., 23)
mmmm 4-character site monument name
H 1-character hour of day (a, b, ..., x)
MM 2-digit minute of hour (00, 15, 30, 45)
.Z UNIX compressed file


GNSS Products
- GNSS orbit and clock solutions (Precise orbits): and SP3c formats
- GNSS earth rotation parameters: IGS-specified format
- GNSS station positions (Reference frame): Software INdependent Exchange(SINEX) format
- GNSS troposphere ZPD /ionosphere TEC : IGS-specified /IONEX format


Directories and file names
gps (glonass)/products/WWWW/AAAWWWWD.TYP.Z
Code Meaning
WWWW GPS week
AAA analysis center name/type of solution (see Table 1)
D day of week (0-6, 7 indicates weekly)
TYP type of solution (see Table 1)
.Z UNIX compressed file
ZPD: gps/products/troposphere/zpd/ YYYY/DDD/SSSSDDD#.YYzpd.gz
Code Meaning
YYYY 4-digit year
DDD 3-digit day of year
SSSS IGS monument name
# file number for the day, typically 0
YY 2-digit year
.gz gzip compressed file
TEC: gps/products/ionex/ YYYY/DDD/AAAgDDD#.YYi.Z
Code Meaning
YYYY 4-digit year
DDD 3-digit day of year
AAA Analysis center name
# file number for the day, typically 0
YY 2-digit year
.Z Unix compressed file
Table 1. Analysis center name/type of solution
Code Meaning
emr NRCan
emx NRCan (GLONASS only)
esa ESA
eur EUREF
gfz GFZ
grg GRGS
gsi GSI
iac MCC (GLONASS only)
igl IGS final solution combination (GLONASS only)
igr IGS rapid solution combination
igs IGS final solution combination
igu IGS ultra-rapid solution combination
igv IGS ultra-rapid solution combination (GLONASS only)
jpl JPL
mcc MCC (GLONASS only from SLR data)
mit MIT
mig MIT
ncl University of Newcastle
ngs NOAA/NGS
sio SIO
sir SIGRAS
clk Satellite and station clock solution (5 minute)
doi: 10.5067/GNSS/gnss_igsclk5_001
clk_30 Satellite and station clock solution (30 second)
doi: 10.5067/GNSS/gnss_igsclk30_001
cls Clock solution analysis summary
doi: 10.5067/GNSS/gnss_igscsum_001
eph Satellite orbit solution
erp Earth orientation parameter solution
doi: 10.5067/GNSS/gnss_igserp_001
sp3 Satellite orbit solution
doi: 10.5067/GNSS/gnss_igsorb_001
sum Orbit solution analysis summary
doi: 10.5067/GNSS/gnss_igssum_001
snx Station position and velocity solution
ssc Shortened position and velocity solution files (without matrices)

 

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